not in the least not in the least {adv. phr.} Not at all. She was not in the least interested in listening to a long lecture on ethics. Categories: add yours {adv. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: N Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Post my comment